Emerson 3051S Especificaciones descargar pdf (Pagina 53)

Reference Manual

00809-0200-4801, Rev CA

July 2010

3-19

Rosemount 3051S

Displaying a variable from another device on the segment (Example)

Any variable from a device on the network can be displayed on the 3051S

LDC but the variable must be on a regularly scheduled communications cycle

and the variable must be linked to a block within the 3051S. A typical

configuration to do this is to link the output of the function block of the variable

to one of the unused inputs of the Input Selector Block.

Display bar graph The 3051S LCD is equipped with a bar graph along the top portion of the

display screen. The bar graph will display the percent of range of AI.OUT (see

Figure 3-5) of the AI block configured for Channel 1 (pressure) of the Sensor

Transducer Block.

The bar graph on the LCD can be enabled from the DISPLAY_PARAM_SEL

parameter in the LCD block.

If no AI block is found to be configured for Channel 1 the bar graph (including

annunciators) will remain blank. If more than one AI block is found to be

configured for the Channel 1 the AI block with the lowest OD index will be

used to calculate the bar graph value.

The following equation is used to calculate the percent of range of AI.OUT:

Figure 3-5. Bar Graph Value

If the bar graph value calculation returns a value less than 0%, the LCD will

display a bar graph value of 0%.

If the bar graph value calculation returns a value greater than 100%, then the

LCD will display a bar graph value of 100%.

Any Function block on Segment

IN_5

IN_8

IN_7

IN_6

Input Selector

Parameter X

Bar Graph Value = 100 * (AI.OUT – AI.OUT_SCALE @ 0%)

(AI.OUT_SCALE @ 100% – AI.OUT_SCALE @ 0%)

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Emerson 3051S Especificaciones Pagina 53